The flag of Brisbane, Commonwealth of Australia

The City of Brisbane is a local government area (LGA) which comprises the inner portion of Greater Brisbane, the capital of Queensland, Australia. Its governing body is the Brisbane City Council. The LGAs in the other mainland state capitals (Sydney, Melbourne, Perth and Adelaide) are generally responsible only for the central business districts and inner neighbourhoods of those cities. However, the City of Brisbane administers a significant portion of the Brisbane Greater Capital City Statistical Area (GCCSA), accounting for just under half its population. As such, it has a larger population than any other local government area in Australia.[3] The City of Brisbane was the first Australian LGA to reach a population of more than one million.[4] Its population is roughly equivalent to the populations of Tasmania, the Australian Capital Territory and the Northern Territory combined. In 2016–2017, the council administered a budget of over $3 billion,[5] by far the largest budget compared to those of the City of Sydney and City of Melbourne LGAs.[6][7] The City derives from cities, towns and shires that merged in 1925. The main offices and central library of the council are at 266 George Street, also known as Brisbane Square. Brisbane City Hall houses the Council Chamber, the offices of the Lord Mayor and Deputy Mayor, meeting and reception rooms and the Museum of Brisbane. In the 2021 census, the City of Brisbane had a population of 1,242,825 people.